Statistics and Probability: Comprehensive Assignment on Hypothesis Testing, Confidence Intervals, and Distribution Analysis
Covers hypothesis testing, confidence intervals, and probability distribution analysis.
Amelia Ward
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Statistics and Probability: Comprehensive Assignment on Hypothesis Testing, Confidence Intervals,and Distribution Analysis1.If n=15 and p=0.4, then the standard deviation of the binomial distribution is3.6. (Ch6)(Points : 8)TrueFalseQuestion 2.2.If the level of confidence and sample size remain the same, aconfidence interval for a population proportion p will be narrower whenp(1-p)islarger than when itis smaller. (Ch9)(Points : 8)TrueFalseQuestion 3.3.In a simple linear regression model, the coefficient of determinationnot only indicates the strength of the relationship between independent anddependent variable, but also showswhether the relationship is positive ornegative. (Ch13)(Points : 8)TrueFalseQuestion 4.4.The sample standard deviation s is an unbiased estimator of thepopulation standard deviation. (Ch8)(Points : 8)TrueFalseQuestion 5.5.If the random variable of x is normally distributed, 68.26% of allpossible observed values of x will be within two standard deviations of the mean.(Ch7)
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